| Super League 1989/1990 Abstieg Gruppe B - Appearances as Referee |  |
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| 18/03/1990 | FC Aarau | - | FC Winterthur | 1:0 | 5 | 1 | - |
| 28/04/1990 | FC Grenchen | - | FC Aarau | 2:0 | 4 | - | - |
| 26/05/1990 | FC Wettingen | - | FC Aarau | 1:1 | 1 | - | - |
| Super League 1989/1990 Abstieg Gruppe B - Appearances as Referee | |
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|
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| 18/03/1990 | FC Aarau | - | FC Winterthur | 1:0 | 5 | 1 | - |
| 28/04/1990 | FC Grenchen | - | FC Aarau | 2:0 | 4 | - | - |
| 26/05/1990 | FC Wettingen | - | FC Aarau | 1:1 | 1 | - | - |
| Complete name: | Karl Strässle |
| Born: | 28/07/1949 |
| Place of birth: |
Switzerland |
| Nationality: |
Switzerland |